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Mayon lava effusion and Strombolian bursts; Fuego nears 10 blasts/hour

Lava effusion, dome growth, and minor Strombolian bursts at Mayon stood out today. Guatemala’s Fuego produced frequent explosions—up to 10 per hour—while Ecuador’s Sangay tallied hundreds of blasts and Peru’s Sabancaya showed a clear uptick. In the United States, Kilauea and Great Sitkin both held at Watch with Aviation Orange.

United States
Kilauea and Great Sitkin kept steady eruption status (Watch / Aviation ORANGE). Shishaldin remained in unrest (Advisory / Aviation YELLOW).

Indonesia
Explosive activity was notable at Ibu (102 explosions; ash to 800 m) and Semeru (108 explosions). Lewotolok recorded 191 explosions with only very low ash near the vent, while Dukono and Marapi produced modest ash plumes. Slope instability and degassing persisted at Merapi, with 111 rockfalls. Unrest continued at Iliwerung, Kerinci, and Raung. Lewotobi remained at an elevated alert, and gas rose about 100 m at Karangetang.

Japan
Yakedake showed increased unrest; a Level 2 restriction remained in place near the crater.

Philippines
Mayon maintained dome growth with active lava effusion and minor Strombolian bursts. Seismic monitoring tallied numerous rockfalls and events linked to pyroclastic density currents, and a persistent crater glow was visible.

Mexico
Popocatepetl emitted gas and steam, and a M1.1 volcano-tectonic quake was recorded; the alert stayed at Yellow Phase 2.

South America
In Ecuador, Sangay produced 297 explosions with ash rising to 1.5 km, while Reventador generated 36 blasts and ash to 1 km. Peru’s Sabancaya increased, with three explosions sending plumes to 2.5 km and a thermal anomaly detected.

Other
Guatemala’s Fuego was highly explosive at times, with up to 10 explosions per hour, incandescent ejections to 300 m, and ash plumes near 1 km. In Costa Rica, Poas remained in eruption (Level 2 – Warning; Aviation Yellow), while Rincon de la Vieja and Turrialba stayed at Level 2 – Warning.

Source: Smithsonian/USGS GVP Daily Volcanic Activity Report (26 January 2026).

Activity Summary for 26 January 2026

Volcano Country Activity Type Keynotes
Dukono Indonesia Eruption Ash-and-gas plumes to 500 m; low-level eruptive activity.
Fuego Guatemala Eruption ~10 explosions/hour; incandescence to 300 m; ash plumes to ~1 km.
Great Sitkin United States Eruption Eruption ongoing; Watch / Aviation ORANGE.
Ibu Indonesia Eruption 102 explosions; ash plumes to 800 m; ongoing eruption.
Kilauea United States Eruption Eruption ongoing; Watch / Aviation ORANGE.
Lewotolok Indonesia Eruption 191 explosions; very low ash plume (~10 m); eruption ongoing.
Marapi Indonesia Eruption Single explosion; ash plume to 600 m.
Mayon Philippines Eruption Lava effusion and minor Strombolian bursts; numerous rockfalls and PDC-related quakes; crater glow.
Merapi Indonesia Eruption 111 rockfalls; gas plume ~10 m; ongoing dome activity.
Popocatepetl Mexico Eruption Gas-and-steam emissions; M1.1 volcano-tectonic quake.
Poas Costa Rica Eruption Eruption ongoing; Level 2 – Warning; Aviation Yellow.
Reventador Ecuador Eruption 36 explosions; ash plumes to 1,000 m; eruption ongoing.
Sabancaya Peru Eruption – increased 3 explosions; ash plumes to 2.5 km; thermal anomalies and volcanic quakes.
Sangay Ecuador Eruption 297 explosions; ash plumes to 1.5 km; thermal anomalies.
Semeru Indonesia Eruption 108 explosions; 5 rockfalls; eruption ongoing.
Iliwerung Indonesia Unrest Ongoing unrest; Alert Level 2 – Alert.
Karangetang Indonesia Unrest Gas-and-steam plume to 100 m; unrest.
Kerinci Indonesia Unrest Ongoing unrest; Alert Level 2 – Alert.
Lewotobi Indonesia Unrest Ongoing unrest; Level 3 – Standby.
Raung Indonesia Unrest Ongoing unrest; Alert Level 2 – Alert.
Rincon de la Vieja Costa Rica Unrest Ongoing unrest; Level 2 – Warning; Aviation Yellow.
Shishaldin United States Unrest Ongoing unrest; Advisory / Aviation YELLOW.
Turrialba Costa Rica Unrest Ongoing unrest; Level 2 – Warning.
Yakedake Japan Unrest – increased Unrest increased; Level 2 – restriction near crater.
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Semeru Volcano Volcanic Ash Advisory: ERUPTION LAST REPORTED 27/0551Z EST VA DTG: 27/0620Z

Volcanic Ash Advisory Center Darwin (VAAC) issued the following report:

FVAU02 at 06:41 UTC, 27/01/26 from ADRM
VA ADVISORY
DTG: 20260127/0640Z
VAAC: DARWIN
VOLCANO: SEMERU 263300
PSN: S0806 E11255
AREA: INDONESIA
SOURCE ELEV: 3657M AMSL
ADVISORY NR: 2026/108
INFO SOURCE: CVGHM, HIMAWARI-9
ERUPTION DETAILS: ERUPTION LAST REPORTED 27/0551Z
EST VA DTG: 27/0620Z
EST VA CLD: SFC/FL150 S0804 E11254 – S0758 E11324 – S0817
E11323 – S0809 E11254 MOV E 10KT
FCST VA CLD +6 HR: 27/1220Z SFC/FL150 S0808 E11253 – S0803
E11254 – S0802 E11325 – S0821 E11320
FCST VA CLD +12 HR: 27/1820Z SFC/FL150 S0808 E11254 – S0803
E11254 – S0802 E11326 – S0820 E11322
FCST VA CLD +18 HR: 28/0020Z SFC/FL150 S0806 E11252 – S0802
E11255 – S0809 E11323 – S0828 E11311
RMK: VA NOT IDENTIFIABLE ON CURRENT SAT IMAGE DUE TO MET
CLOUD. HOWEVER, GROUND REPORTS INDICATED INTERMITTENT
DISCRETE EMISSIONS ARE ONGOING. VA HEIGHT AND MOVEMENT BASED
ON GROUND REPORTS AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20260127/1240Z=

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Popocatépetl Volcano Volcanic Ash Advisory: LGT VA EMS OBS to 21000 ft (6400 m)

Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 21000 ft (6400 m) altitude or flight level 210 .
The full report is as follows:

FVXX21 at 01:56 UTC, 27/01/26 from KNES
VA ADVISORY
DTG: 20260127/0154Z

VAAC: WASHINGTON

VOLCANO: POPOCATEPETL 341090
PSN: N1901 W09837

AREA: MEXICO

SOURCE ELEV: 17693 FT AMSL

ADVISORY NR: 2026/038

INFO SOURCE: GOES-19. NWP MODELS.

ERUPTION DETAILS: LGT VA EMS OBS

OBS VA DTG: 27/0136Z

OBS VA CLD: SFC/FL210 N1913 W09818 – N1904 W09809
– N1902 W09813 – N1910 W09820 – N1913 W09818 MOV
NE 25KT

FCST VA CLD +6HR: 27/0730Z SFC/FL210 N1927 W09749
– N1907 W09742 – N1859 W09837 – N1901 W09838 –
N1927 W09749

FCST VA CLD +12HR: 27/1330Z NO VA EXP

FCST VA CLD +18HR: 27/1930Z NO VA EXP

RMK: LGT VA CLD OBS IN STLT IMG AT APPRX 20NM FM
SUMMIT. NWP MDL GUIDANCE FCSTS GEN ENE MOVMT THRU
T+6. HGT BASED ON MOVMT AND NWP MDLS. …MONAGHAN

NXT ADVISORY: WILL BE ISSUED BY 20260127/0800Z

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Global: US withdrawal from landmark Paris Climate Agreement threatens “a race to the bottom”

Responding to the withdrawal of the United States of America from the Paris Climate Agreement, Marta Schaaf, Amnesty International’s Programme Director for Climate, ESJ and Corporate Accountability, said:

“The US withdrawal from the Paris Agreement sets a disturbing precedent that seeks to instigate a race to the bottom, and, along with its withdrawal from other major global climate pacts, aims to dismantle the global system of cooperation on climate action.  The US is one of several powerful anti-climate actors but as an influential superpower, this decision, along with acts of coercion and bullying of other countries and powerful actors to double down on fossil fuels, causes particular harm and threatens to reverse more than a decade of global climate progress under the agreement.

“While the US may no longer be a party to the Paris Agreement, it still has legal obligations to protect humanity from the worsening impacts of climate change as confirmed by the International Court of Justice in its landmark 2025 Advisory Opinion.

“US-based climate advocates and activists now find themselves on the frontlines of a fight with implications for current and future generations everywhere. Global solidarity and support to ensure accelerating momentum to address climate change has never been more urgent. Those who witness the harms caused by climate change and who can speak safely – must speak up. Other governments too must push back against all coercive efforts by the US. Ceding ground now risks losing it for years. Neither the planet nor the people living on the frontlines of proliferating unnatural disasters have that much time.”

While the US may no longer be a party to the Paris Agreement, it still has legal obligations to protect humanity from the worsening impacts of climate change as confirmed by the ICJ in its landmark 2025 advisory opinion.

Marta Schaaf, Amnesty International’s Programme Director for Climate, ESJ and Corporate Accountability

Background

The Paris Agreement is a legally binding international treaty adopted more than a decade ago by 196 parties aimed at combating climate change by pursuing efforts to limit global warming to 1.5°C – a threshold that the world is rapidly surpassing.

The US withdrawal from the Paris Climate Agreement comes into effect tomorrow, 27 January, following an executive order signed by US President Trump in January 2025. Just earlier this month, the US also declared it will withdraw from United Nations Framework Convention on Climate Change (UNFCCC), Intergovernmental Panel on Climate Change (IPCC) and Green Climate Fund (GCF).

President Trump has also called for US withdrawal from over 60 other international organizations, including many others related to climate change, biodiversity and clean energy, calling them ‘wasteful, ineffective, or harmful’.

The post Global: US withdrawal from landmark Paris Climate Agreement threatens “a race to the bottom” appeared first on Amnesty International.